Half his eight to john mundell



4 Sheets-Sheet 1.

C. TYSON.

the uppers upon the Sales #flachines fur screwing and Heels of Buots,&c.

Paten te d March 24,1874.

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Machines for screwing the Uppers upon the Soles and Heel of Boots, &c.

Emma;

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6. TYSON.

Machines for Screwing the Uppers upon the Soles and Heels of Boots, 810.

N0 149 007 Patented March 24,1874.

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G. TYSON.

Machiney-f'gr screwing the'Uppers upon the Safes and Heels of Boots, &c.N0.l49.007. PatentedMarch24,1874.

TINITED STATES FFIGE.

PATENT CHARLES TYSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE=HALF HIS RIGHT TO JOHN MUNDELL, OF SAME PLACE.

IMPROVEMENT IN MACHINES FOR SCREWING THE UPPERS UPON THE SOLES AND HEELS0F BOOTS, &c.

Specification forming part of Letters Patent No. 149,007; dated March24, 1874; application filed September 23, 1873.

CASE A.

To all whom it may concern:

Be it known that 1, CHARLES TYsoN, of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in Machines for Screwing the Uppers onto theSoles and Heels of Boots and Shoes, of which the following is aspecification:

This invention relates to machines for uniting the sole to the upper, inthe manufacture of boots and shoes, by means of screws out upon and froma continuous wire, and in which, during the cutting of the screw, it isat the same time entered into the material to firmly unite the pieces,and then severed from the wire, as in the machine patented to Amasa B.Howe, assignee of Eugene Lemercier, of date December 16, 1862; but insuch machine these several operations have been effected by manuallabor. By my invention these several operations are performedautomatically in an organized machine, in which each successive step inthe operation (except the rotary motion of the screwing-spindle) isperformed by certain devices which are actuated by a cam-shaft, eachrevolution of which causes the complete operation required for theseveral 'things stated, while the motion of the camshaft and thescrewing-spindle are continuous during the operation of forming andentering successive screws, and their length automat ically regulated tothe varying thickness of the material by means of an escapement ortripping device operating in connection with the feeding clamp, whilethe feed of the wire is efl'ected by combining with the screwingspindlea clamp sliding upon and independent of the movement of said spindle, aswill be hereinafter described.

In. the accompanying drawings, Figure 1, Sheet 1, represents a view inperspective of a machine embracing my invention; Fig. 2, Sheet 2, avertical section; Fig. 3, Sheet 3, a front elevation; Figs. 4 and 5,Sheet 1, sectional views of the automatic feed clamping device for thewire; Fig. 6, Sheet 4, a side view of the escapement or detent devicefor the wirefeeding clamp; Fig. 7, same sheet, a section, showing themanner of operating the cut-off for the wire and the feed device for theshoe; Figs. 8 and 9, same sheet, bottom and sec= tional views of thepressing-nose and Fig. 10,

same sheet, the band shifting device of the treadle.

Upon a fixed standard, A, ahorizontal frame, B, is pivoted at A, andarranged to carry the several operating parts of the machine. Thespindle 0 forms the guide for the wire a, and is mounted in aguide-head, G at the front of the pivoted frame B, and it has a rotaryand axial movement to form the screw upon the wire and screw it into thematerial. The spindle carries at its lower end an automatic clamp forlaying hold of the wire to cut the screw and screw it in, and the fixedframe A- carries a device for automatically releasing the clamp afterthe screw has been. entered.

In the combination of the screwing-spindle with the clamp-slide D thelatter is free to be moved up and down upon the spindle, and theclamping devices consist of two steel jaws,,p' p, fitted upontoggle-pins c c, to slide within openings in the spindle, and so as tobe closed upon. and clamp the wire within the spindle,

the togglepins being socketed in the jaws and adjusting-screws (Z d inthe ends of the clamp.

The forcing down of the clamp straightens the toggles and clamps thejaws against the wire to be fed down, as shown in Fig. 4, and the upwardmovement of the clamp flexes the pins 0 c to release the jaws and thewire, so-that the spindle with the jaws can rise freely over it to takea new feed, as shown in Fig. 5. This clamp is moved between an upper anda lower automatic device, which serve to control its vertical movement,above stated. The clamping of the wire holds it firmly while cutting thescrew and entering it into the sole, and the clamp-head revolveswiththe' spindle by its jaw and pin connection.

The clamping movement is effected by alever, E, Figs. 2 and 3,mounted inthe pivoted frame B, so that its front forked end will straddle thespindle above the clamp, whileits rear end E.

a meme extends back to receive the action of a cam, E on a cam-shaft, F,carried by the pivoted frame; and each revolution of the cam E willdepress the lever E upon and force down the clamp to bite the wire to"form and enter each screw. The spindle is suspended by a swivelingconnection, 0 with horizontal arms G G, mounted on a rock-shaft, Goperated by an arm, G which receives a vibratory motion from agroovecam, H, upon the face of a cog-wheel, H, on the cam-shaft F,whereby the spindle is carried down and raised; the cam being such thatthe descent of the spindle is gradual, and commencing just after thewire is clamped, and its ascent taking place just after the screw isentered and the wire out, while the rotary motion of the spindle to cutand screw in the screw is produced by a sleeved-pulley, I, drivencontinuously by a band, 1 leading to a pulley, P, on the powerdriving-shaft I at the rear of the frame. The sleeve 1) is secured inthe guidehead by a collar, to; and a screw, a passing through the collarand the sleeve, enters the groove 3 in the spindle, to allow the lattersaxial movement while being revolved. The nose K projects forward fromthe under side of the pivoted frame B, and during the abovestatedoperations of the spindle the nose is brought down upon and firmly holdsthe work upon a beak-iron or horn, L. This nose carries both thescrew-chaser and the cut-off for the wire.

The unclamping movement is effected by a forked gage or arrester, M,Figs. 2 and 3, mounted upon a rock-shaft, M in the fixed frame, and heldin a fixed position between the clamp-slide and the nose K, to serve tourrest the descent of the clamp-slide and release the jaws b I) whilethe spindle continues its descent to the full length of its movement,which must be sufficient for the largest screw required, the arresterbeing tripped in this movement of the spindle, and descends with it. Thedevice for holding and tripping the arresterM consists of a stopprojection, M on the left end of the rock-shaft M and which is held inits fixed position by a spring-detent, 0, carried by an arm, 6 pivotedupon the fixed frame, and connected, by an adjustable link, N, to anarm, N, upon the rock-shaft G, which elevates and depresses the spindlethrough the cam H. The arm N must be of the same length, and in the sameradial position, or nearly so, as the arms G of the spindle, to insurean equal movement of the detent-arm c with that of the spindlecarryingarms. The detent e is'a spring-plate, having its acting en d in the formof a segment, 6 of a circle, whose center is the axis of the detent-armc and the stop projection M has a flat side, for action against thesegment 6 so that when the spindle and the arrester have descended adistance equal to that between the nose K and the beak-iron L, plus theprojection of the screw after being entered and clinched, the stopprojection M will at this moment pass the angle 2 of the segment-detentc, and thereby allow thearrester to be free to descend with the spindle,as stated, as shown in Fig. 6. After this full movement, the spindle isbrought up by the cam H, and the arrester M is caused to rise and bringup the clamp, and to resume its fixed position, by an adjustableweighted arm, f, Figs. 1 and 6, secured to the rock-shaft M and extendsbackward, to constantly exert its force to bring up the arrester, whichthereby carries the escapement projection h 2 past the angle 2 of thedetent e, which, being a spring-plate, yields for that purpose, andallows the projection M to again rest against the segment c and hold thearrester in its fixed position. The arrester follows the clamp-slide upand down, the action of the escapement projection causing a hesitationin the downward movement of the arrester at the proper point torelievethe clamp.

In Fig. 6 the parts occupy the position ust at the moment before theescapeinent takes place at the point 2, while the dotted line 3 showsthe position of the detent 0 while holding the arrester M, to act uponand release the clamping device; and the dotted line tindicates thepoint to which the detent is earned after the escapement and while thescrewingspindle is making its full descent, and, for determinin g theaccuracy of the required adjustment of these parts, the stop M and theconnecting-rod N are made adjustable. The detent-arm c has a movementdue to that of the tilting frame B, and also a movement due to theaction of the arm N upon the rock-shaft G the result of which is that,in proportion as the nose K approaches the beak-iron L, governed alwaysby the thickness of the material, the spring-detent will approach thepoint at which the escapement must take place. Qonsequently, if thematerial be thin, the points of escapeinent will have been more nearlyreached, or closer together, than when a greater thickness of materialis under operation. For example, if the nose approaches the beak-iron aneighth of an inch, then the spring detent-arm 6 will be in thatposition. that an eighth of an inch movement will bring the detent atthe point of escapement. In this movement the arm N, and spindle also,descends the same distance, and the spring-detent 6 will be at the point2, to allow the projection M to pass it and free the arrester M, to bedepressed out of the way.

By these means the arrester forms the gage that regulates the length ofthe screws for the ditferent and varying thicknesses of the work, suchas the shank of the shoes, which requires a shorter screw than the sole,and also for different thicknesses of soles. It is by the joint actionof the lever E in the pivoted frameB, to clamp the wire at a point withreference to the movement of said frame, and the arrester M, having afixed position with reference to the fixed frame, the beak-iron, and thenose, that any variation in the distance between the nose K and thebeak-iron L will produce the same variation in the distance between thearmanor 3 rester and the forked lever, and determine the length of thescrew.

By adjusting the height of the beak-iron with respect to the nose, thescrews may be screwed partially through the material and not clinched,and their full length always obtained, besides the surplus ends left inthe cavity 9 of the nose. The nose K is brought into position over andnear the in aterial upon the beak-iron L by a treadle, O, pivoted at thebase of the frame, and acting through a rod, 0, to depress the front endof the pivotframe which carries said nose. This action of the treadle Oat the same time shifts the drivingbelt from a loose pulley, h, to afixed pulley, h, upon the power driving-shaft I and thereby revolves thespindle and puts in motion the operating mechanism in the pivoted frame,

the band-shifter 'i beingpivoted upon the fixed frame and connected tothe treadle-rod O by a rod, 0 provided with a spring, 0 which constantlytends to depress the rear end of the treadle through an arm, 0*. A belt,P, from the pulley P on the driving-shaft 1 gives motion to a shaft, Q,a pinion, R, on which matches with the cog-wheel H of the cam-sh aft,and thus automatically operates the several parts. Innnediatel y uponthe starting of the machine, a cam, S, on the cam-shaft F, acts upon thefront end of the sliding frame T, mounted upon a pivoted arm, T, andwhich frame carries a rod, U, connecting with a cam or bell-crank lever,V, pivoted at V whichacts upon a cam or-head-piece, 0 on the upper endof the connecting-rod 0 a bearing-roller, V, Fig. 2, being placedbetween the lever V and the head 0 to relieve the friction and effect auniform motion of the lever. This backward movement of the frame Tvibrates the bell-crank lever V, to which the rod U is connected and asthe end of the lever V rests upon the upper end of the treadle-rod andasthe latter is held up by the foot against a stop, j, Fig. 1, whichlimits the ascent of the treadlerod O and the point to which the nose Kcan be brought down by the foot, it follows that the rearward movementof the frame T must, by the action of the lever V, raise the rear end ofthe tilting frame B, and thereby bring the nose K down firmly upon thematerial, any variation in the thickness of which will be compensatedfor by the yielding of the connecting-rod U, which has a springattachment with the reciprocating frame T for that purpose, as shown inFig. 2. The tilting frame B is constantly pulled down at its rear end bya spring, XV, attached to thefixcd frame, and the reciprocating frame Tis constantly pulled forward against its operating-cam S by a spring, X,attached to the pivoted frame, as shown in Fig. 1. The screw-chaser J ismade adjustable, and is-arranged on the upper side of the nose, whichhas a vertical opening through it for the passage of the wire in contactwith the screw-chaser. The cutter Y, for cutting OK the screw, isarranged in the underside of the nose in a slide, Z, which moves in agroove in,

nose by removable plates at and a for access to these parts. Theseplates n n are secured to the nose by screw-bolts 0 fitting into notchesin the edges of. the plates and nose, and clamped by screw-nuts 0, sothat, slackening off the nuts, the bolts and plates can be easilyremoved when anything is required to be done to either of the cutters,and the several parts replaced, as shown in Figs. 8 and 9. The

beak-iron L is arrangedso that its acting point y L will be directlybelow the nose K. It is pivoted at its lower end so as to be turned backupon a horizontal arm, L fixed upon a vertical stein, L mounted inguide-bearin gs l l in the fixed frame, and upon which stem L thebeak-iron and its arm L is free to be swung round horizontally as thework pro gresses. The beak-iron L has a branch arm, P, by which it issupported, and is adjusted by a screw, 1 in the arm L in whichadjustment the horn turns upon its pivot 1 so as to raise and lower theacting point L with respect to the nose. This pivoted horn is for use inscrewing on the soles, and, being of metal, clinches the inner end ofthe screw when the latter strikes it as it is screwed home, as describedin the patent referred to. The horn is turned back out of the way uponits pivot when the sole-work is finished, and the heel portion of thesoles are supported for operation by a post, p, which fits looselywithin a deep socket in the vertical stem L and which is elevated andheld within said socket at the proper height by a pin, passing throughthe stem at p beneath the socket-post; or any suitable device may beused for this purpose when the post issubstituted for the horn. The stemL is adjustable by a screw, L and lock -nuts at its lower end, foreffecting the proper adjustment of the horn or post with respect tothenose.

A feed arrangement for boots and shoes consists of a roughened roller,q, supported upon a spring arm, g from the fixed frame just beneath thenose, so that the edge of this roller will press upon and by itsintermittent motion feed the work along, while it also serves stroke ofan arm, k, Figs. 2 and .7, of the same lever, k, which operatesthe'cutter-slide Z, so

that the feed of the work shall take place just afterthe entered screwhas been severed, and

the nose is raised. Thelever k is kept in po- -rial=and against thehorn.

sition for the action of the cam l by a spring, in any suitable way,which constantly draws the lever forward and the knife back.

When the work upon the soles from shank to shank is finished, themachine is stopped by removing the operators foot from the treadle O,which instantly shifts the driving-band by the shifter z from the fixedto the loose pulley. The momentum of the shaft I and its pulleys tendsto continue the motion of the working parts a little; and to avoid thisI employ a brake, 'r, pivoted at s to the tilting frame in a position tobear upon the pulley I and to stop the machine, as shown in Fig. 2. Thebrake is adjustable by a screw, 2, passing through a branch arm, u, andits capacity to stop the machine is derived from the movement of theframe B, which, upon the full descent of the rear end of the frame B,brings the brake 1". down upon the pulley-l and instantly stops it. Thedepression-of the nose K by the foot to the limit of the treadle-stopjinstantly raises the brake and releases the driving-pulley l and in thisway the tilting movement of the spindle-carrying frame is utilized toput on and take ofi'the brake. The movement of the pivoted framemust-have a certain exactness with the action of the escapement devices,and for obtaining such exact adjustment the rod N, which connects thetwo things, is

provided with a proper screw-connection, as

shown in Fig. 6. The screw is cut with a divided or notched end toclinch it whenentered against the horn.

In operating the machine, the treadle 0 brings the nose K down near thesole, but-not upon it, the stop j preventing contact, and this movementsimultaneously shifts the band from the loose to the fixed pulley h, andthe screwing-spindle C and cam-shaft F are set revolving by the bands Iand P, Fig. 2. The cam S, acting upon cam V of the reciprocating frameT, lifts the rear end of the frame T, and

depresses its front end hard upon the sole, in

which position'it is held by the concentric portion'of the cam S, whilethe spindle is carried down by the cam H, through the connecting thewire, which is forced into the opening 2 in the nose, and has thescrew-thread cut. The spindle, continuing its'descent and revolving,screws the screw into and through-the mate- At this point the clamp Dhas pressed against the arrester M sufficientlyto-release thejaws d,unclamp the wire, and set the arrester free by the springdeten-t-epassing the stop projection M which, in the meantime, was operated byits arms e N N connecting with the spindledriving rockshaft G. Thearrester descends clear of the clamp D, and the spindle continues theremainder of its stroke idly,thelost motion be ingrequired for thegreatest possible length of screws. At'thisrpomt the-cam S has passedits concentric surface and allows the rearend I f the tilting-frame B todrop, and thereby The cutter is rai'se'the -nose from the sole.

now driven forward by the cam land lever k, and cuts off the enteredscrew. The back stroke of the lever It acts, through the ratchet g andpawl g to operate the feed-wheel q and move the sole to receive thesucceeding screw. Both sides of the shoe are screwed from shank toshank, the bealniron being swung round to turn the toe. The machine isstopped by removing the foot from the treadle and bringing the brakerinto action. In working upon the heel portion of the sole the beak-ironis turned back, as shown in dotted lines in .Fig. 1, and the stem-postpraised and supported :in its socket at the proper height, and the :heelsare now secured in the same way as the soles, the heels being the heelportion of the soles, and not the high heels, and the curved end of thebeak-iron is not so well adaptedjpr work on the heels as the verticalstem. Having described-my invention, I claim- 1. In a machine forscrewing the uppers on the soles and heels of boots and shoes, the clampD, having a-rising-and-falling movement upon the screwing spindle, incombination with the spindle (3, having an axial and revolving motion,essentially as described, and for the.

purpose stated.

2. The combination of the sliding clamphead D with the clamping-jaws bb, the togglepins 0 c, and the screwing-spindle, operating substantiallyas described.

3. The combination of the clamping device D for the wire with the leverdevice E, or its equivalent, for operating the clam pin g device,essentially as described.

4. The combination of the clamping device D for the wire and itsoperating-lever device E with an arresting device, H, for releasing thewire from the clamp, essentially as described.

. 5. The arresting device M for flexing the clamp-pins c, in combinationwith a holding and tripping or escapement device, 0 M for holding thearrester and allowing it to drop out of the way, essentially asdescribed.

6. The arrester M, lever E, clamp D, and nose K, arranged in relationtoeach other as described, and to the beak -iron L, to-oper- Yatesubstantially as and for .the purpose described.

7. The spring escapement-detent ve-andthe stop M arranged upon the fixedframe, in combination with the screwing-spindle O and the operating-cam11, arranged upon the pivoted frame B, connected as described,and forjoint operation, to release the arrester M at the moment the wire isnnclamped, todetermine the lengthof the screw, essentially as described.

8. The arrester M, in combination with the escapement devices and theweighted arm f, for bringing up the arrester and locking it with theescapement-detent simultaneously with the ascent of the spindle, for thepurpose and essentially as described.

9. The combination of the adjustable connecting-rod N with-the cam H andthe escapement-detent device 0 M as described, and for g the purpose setforth.

10. The screwing's'pindle 0, its clamping device D, and the lever E,which operates it, the arrester M and its escapement devices 6 M thepressing-nose K, and the cut-off for the screw, all carried by andarranged upon the pivoted frame B, and having their several and distinctmovements produced from the cam-shaft F automatically, and in theirrespective successive relations to each other, essentially as described.

11. The combination of the reciprocating frame T with the oscillatingpivoted frame B and the treadle O,.t0 efl'ect the automatic pressing andholding action of the nose K upon the stock, essentially as described.

12. The adjustable stop j, incombination with the treadle-rod O andtreadle O, for regulating and limiting the descent of the nose K andshifting the driving-band at the same time, for operation as described.

13. The cutter Y for severing the screw, having a screw-stem, Y, and nutm, for adj ustment, as described.

14. The removable plates 12 n of the nose K, arranged and secured asdescribed, and for the purpose stated.

15. The lever k k, in combination with the cam-shaft F, the cut-off Y,and the shoe-feeding device, the parts being arranged tooperscrew-cutter, Y, whereby the screw-thread is cut upon the wirewithout a screw-spindle.

17 .The beak-iron L, pivoted as described, in combination with thefootadjusting screw Z as and for the purpose described.

18. The socketed stem L of thebeak-iron, in combination with theextensible post 1), essentially as described, and for the purposestated. e

19. The combination of the socketed extension-post p with the removablesupporting-pin p as described.

20. The brake r, in combination with, and arranged to be operated by,the oscillating frame B, in the manner and for the purpose described. y

In testimony whereof I have hereunto set my hand this 23d day of August,A. D. 1873.

' CHARLES TYSON.

Witnesses:

' A. E. H. JOHNSON,

J. W. HAMILTONJOHNSON.

